According to the survey, the average amount of time spent studying for a math test was 35
minutes, with a standard deviation of 10 minutes.

What range would you expect 95% of the
sample's study times to be between if the sample
was approximately normal?
o 25–45 minutes
O 10-35 minutes
о 15-55 minutes
O 5-65 minutes

step-by-step explanation:

idk lol xd

step-by-step explanation:

ez do it yourself lazy

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.